JPS54131189A - Press machine - Google Patents

Abstract

PURPOSE: For ensuring the high speed press of laminated goods, to generate a sufficient frictional resistance for the fixation of said laminated goods through specifying the profile and length of a laminated goods passage hole in relation to the sizes of the thin plate pieces of said laminated goods and said laminated goods themselves.

CONSTITUTION: Thin plate pieces including embossed projections are made by punching a matallic material 8 by means of a punch 9 and a die 10 a metallic material 8 having said embossed projections and fixed on combinedly with those 11 made at preceding lines of punches. Said thin plate pieces 11 are fed with the lamination separated pieces from which said embossed projections 7 are pulled off per a fixed number thereof, and laminated goods are with a fixed lamination thickness are pressed continuously. Said laminated goods are taken out of a die 10 through the passage hole 12 provided rightly below said die 10. A sufficient frictional resistance for the fixation of said laminated goods is generated dependent the tightening allowance of said passage hole 12 and friction distance by making the size of said passage hole 12 equal to or somewhat smaller than the punch size of said thin plate pieces and the length thereof smaller than 1/2 of the lamination thickness of said laminated goods.

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